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A method of producing cellulosic pulp
Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering. (FSCN - High Yield Pulping Research Profile)
Innventia (STFI).
STFI (Innventia).
Innventia (STFI).
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1991 (English)Patent (Other (popular science, discussion, etc.))
Abstract [en]

Mechanical and chemimechanical cellulose pulp, particularly paper pulp, is produced at a low energy input by disintegrating and beating wood material in one or more stages. Acccording to the invention, a substance capable of forming complexes with polyvalent metal ions, particularly calcium ions, so-called complexing agent, is added to the wood material prior to the beating process in order to replace said calcium or other polyvalent metal ions with sodium ions, therewith a further reduction in the energy input is obtained.

Place, publisher, year, edition, pages
1991.
Keywords [en]
ion exchange, complexing agent, mechanical pulping, chemimechanical pulping, low consistency refining, high consistency refiningchanical pulping, chemimechanical pulping, low consistency refining, high consistency refining
National Category
Paper, Pulp and Fiber Technology
Identifiers
URN: urn:nbn:se:miun:diva-29426OAI: oai:DiVA.org:miun-29426DiVA, id: diva2:1051899
Patent
AU 638511 (B2) (1993-07-01)
Note

International application WO9106700 (A1) ― 1991-05-16, in Canada CA2073048 (A1) ― 1991-05-07, Finland FI922025 (A) ― 1992-05-05, Brazil BR9007815 (A) ― 1992-08-25 and Japan JPH05503965 (A) ― 1993-06-24.

Available from: 2016-12-05 Created: 2016-12-05 Last updated: 2018-04-13Bibliographically approved

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https://www.google.com/patents/WO1991006700A1?cl=en&dq=engstrand+sjögren+patent&hl=sv&sa=X&ved=0ahUKEwjOz7W75tvQAhUDApoKHas-CRgQ6AEIHDAA

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Engstrand, Per

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
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  • nn-NO
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  • Other locale
More languages
Output format
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